@article{PismaZhETF.50.3,
    title = {New corrections to hyperfine splitting in muonium and hydrogen},
    author = {Karshenboim, S. G. and Shelyuto, V. A. and Eides, M. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {50},
    issue = {1},
    pages = {3},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17024.shtml},
}